水轮机

Numerical simulation of the steady cavitating turbulent flow in the whole flow passage of a Kaplan turbine has been carried out by using a full cavitation model and a mixture two-phase flow model.

采用一种完整空化模型和一种混合流体两相流模型，对轴流式水轮机全流道内的定常空化湍流流动进行了数值模拟。

In This paper introduces the system for monitoring corrosion of gas turbine condition.

本文给出了一种水轮机气蚀状态监测系统。

The results of numerical simulation and the demand of hardware resources are directly affected by the model and grids.

模型的建立和网格的粗细直接影响着水轮机数值模拟的结果和对硬件资源的需求。

With the rapid increase of the reduced head and unit capacity of hydro turbine in recent years, more and more attention is paid to the vibration of units and mill construction.

摘要随着近年来水轮机的引用水头和单机容量的急剧加大，机组振动和厂房结构振动问题越来越受到人们的关注。

This paper introduces racing of original integrated operation characteristic curves and efficiency curves after uprating and refurbishing hydrogenerator of shangyoujiang power plant.

介绍上犹江水电厂水轮机增容改造后的效率试验过程及效率曲线与运转综合特性曲线的绘制。

Based on the numerical computation results and considered the contribution,efficiency and anti-corrosion capacity,the optimum scheme is selected and applied.

根据计算结果，综合考虑水轮机的出力、效率、及汽蚀性能优选出切边的最佳方案并付诸实施。

Through the analysis of the sealing structure for runner blade of Kaplan turbine in the world,based on the corresponding test,a new type sealing that with several layer "V" shape sealings and without spring ring is introduced.

通过对国内外转桨式水轮机各种叶片密封结构的分析，以针对性的试验为基础，推出了新的无弹簧多层&V&型密封。

By connecting the pilot valve of stepping electric motor with machinery and hydraulic servomotor device, it can form the stepping microcomputer-based governor for water turbine.

以工业控制级单片机 80C552 为核心，开发出集测频、调速、调功、开停机操作、故障诊断及与上位机通讯等功能于一体的双微机型电气调节器，并与抗油污能力强、定位精度高、漏油量小的步进电机式引导阀及机械液压随动装置相配接，构成了水轮机步进式微机调速器。

In this paper,the principle for the orifice flow-meter to measure the hydraulic turbine wicket gate leakage was introduced.

本文介绍了用标准节流孔板流量计进行水轮机导叶漏水量测量的基本原理，结合实例介绍了计算方法并进行了误差分析。

From this formula we can explain the tendency that the hydrovibration frequency increased with decreasing wicket gate opening of Francis turbines.

此式可以解释水力振动频率随混流式水轮机导叶开度减小而增高的趋势，并用两个压力梯度方程初步阐述了压力脉动振幅随工况而变化的现象。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。